860440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{439}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 2257200

約数和(自身を除く): 1396760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 439, 490, 878, 980, 1756, 1960, 2195, 3073, 3512, 4390, 6146, 8780, 12292, 15365, 17560, 21511, 24584, 30730, 43022, 61460, 86044, 107555, 122920, 172088, 215110, 430220, 860440]

約数ペア:

[(1, 860440), (2, 430220), (4, 215110), (5, 172088), (7, 122920), (8, 107555), (10, 86044), (14, 61460), (20, 43022), (28, 30730), (35, 24584), (40, 21511), (49, 17560), (56, 15365), (70, 12292), (98, 8780), (140, 6146), (196, 4390), (245, 3512), (280, 3073), (392, 2195), (439, 1960), (490, 1756), (878, 980)]